GeForce GT 430 (OEM) vs Radeon HD 4670 512MB

Intro

Compare all of that to the Radeon HD 4670 512MB, which features core clock speeds of 750 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 4670 512MB		70 Watts
	Difference: 10 Watts (17%)

Memory Bandwidth

The Radeon HD 4670 512MB, in theory, should be a bit faster than the GeForce GT 430 (OEM) overall. (explain)

Radeon HD 4670 512MB		32000 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The Radeon HD 4670 512MB will be much (about 114%) faster with regards to AF than the GeForce GT 430 (OEM). (explain)

Radeon HD 4670 512MB		24000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 12800 (114%)

Pixel Rate

The Radeon HD 4670 512MB should be much (more or less 114%) faster with regards to anti-aliasing than the GeForce GT 430 (OEM), and able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 4670 512MB		6000 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 3200 (114%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.